A noise-reducing saw blade

Abstract

The utility model relates to a saw blade technical field, concretely relates to a noise reduction type saw blade, include: circular saw blade base body, the outer circular surface of circular saw blade base body is connected with a plurality of first welded boss, is equipped with the second welded boss between adjacent first welded boss, respectively has first saw tooth on first welded boss, respectively has second saw tooth on second welded boss, one side of first saw tooth is equipped with first S shape corrugated groove, the other side is equipped with second S shape corrugated groove, the wave trough of first S shape corrugated groove corresponds with the wave crest of second S shape corrugated groove, the wave crest of first S shape corrugated groove corresponds with the wave trough of second S shape corrugated groove, one side of second saw tooth is equipped with third S shape corrugated groove, the other side is equipped with fourth S shape corrugated groove, the wave trough of third S shape corrugated groove corresponds with the wave crest of fourth S shape corrugated groove, the wave crest of third S shape corrugated groove corresponds with the wave trough of fourth S shape corrugated groove. The utility model has reasonable structure, reduces the noise, strengthens the use effect.

Description

Technical Field

[0001] This utility model relates to the field of saw blade technology, and in particular to a noise-reducing saw blade. Background Technology

[0002] Saw blades, as a general term for thin, circular cutting tools for cutting solid materials, can be divided into three main categories based on the object being cut: first, diamond saw blades, specifically designed for stone cutting; second, high-speed steel saw blades (without carbide tips), mainly used for cutting metal materials; and third, carbide saw blades, suitable for cutting various materials such as solid wood, furniture, engineered wood, aluminum alloy, aluminum profiles, radiators, plastics, and PVC.

[0003] However, when a saw blade rotates at high speed, it causes surrounding air to flow rapidly along the saw teeth and the surface of the saw blade. Under certain working conditions, eddies easily form behind the saw teeth and key parts of the saw blade, and these eddies exhibit periodic shedding, resulting in eddy separation frequencies. This eddy separation process causes vibration of the saw blade and pressure fluctuations in the surrounding air, ultimately transforming into noticeable operating noise. More importantly, when the eddy separation frequency approaches or even perfectly matches the natural frequency of the saw blade itself or its associated components, it is highly likely to trigger a resonance effect—a phenomenon that significantly increases noise intensity, not only affecting the comfort of the working environment but also potentially interfering with cutting accuracy and efficiency, drastically reducing the actual performance of the saw blade. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a noise-reducing saw blade that reduces noise and enhances performance.

[0005] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: a noise-reducing saw blade is provided, comprising: a circular saw blade base, wherein a plurality of first welding protrusions are connected to the outer circular surface of the circular saw blade base, and a second welding protrusion is provided between adjacent first welding protrusions, the second welding protrusions are connected to the outer circular surface of the circular saw blade base, and first saw teeth are welded to the first welding protrusions respectively, and second saw teeth are welded to the second welding protrusions respectively. The first saw tooth has a first S-shaped corrugated groove on one side and a second S-shaped corrugated groove on the other side. The trough of the first S-shaped corrugated groove corresponds to the peak of the second S-shaped corrugated groove, and the peak of the first S-shaped corrugated groove corresponds to the trough of the second S-shaped corrugated groove. The second saw tooth has a third S-shaped corrugated groove on one side and a fourth S-shaped corrugated groove on the other side. The trough of the third S-shaped corrugated groove corresponds to the peak of the fourth S-shaped corrugated groove, and the peak of the third S-shaped corrugated groove corresponds to the trough of the fourth S-shaped corrugated groove. The trough depth of the first S-shaped corrugated groove is not equal to the trough depth of the second S-shaped corrugated groove, and the trough depth of the third S-shaped corrugated groove is not equal to the trough depth of the fourth S-shaped corrugated groove.

[0006] By adopting the above technical solution, during use, the saw blade is installed on the spindle of the cutting machine. After the cutting machine starts working, it drives the circular saw blade base to rotate, which in turn drives the first saw tooth on the first welding boss and the second saw tooth on the second welding boss to rotate at high speed, thereby realizing the cutting operation of the material. Since the first saw tooth has a first S-shaped corrugated groove and a second S-shaped corrugated groove on both sides, and the second saw tooth has a third S-shaped corrugated groove and a fourth S-shaped corrugated groove on both sides, these S-shaped corrugated grooves drive the flowing air in different directions, making it difficult for the air to form periodic eddies behind the saw teeth, that is, it will not produce eddy separation of a specific frequency. This reduces the probability that the eddy current and the natural frequency of the circular saw blade base and its related components are close to or even completely consistent, effectively avoiding resonance effects, reducing the noise generated by the saw blade during cutting, and improving the performance. Because the trough depths of the first S-shaped corrugated groove and the second S-shaped corrugated groove are not equal, and the trough depths of the third S-shaped corrugated groove and the fourth S-shaped corrugated groove are also not equal, this design allows the four S-shaped corrugated grooves to disperse and drive the air in more directions, greatly reducing the possibility that the air vortex and the natural frequency of the circular saw blade base and its related components will approach or completely coincide, further enhancing the noise reduction and stable use effect.

[0007] In a preferred embodiment, the present invention can be further configured as follows: two first S-shaped turbulence grooves are symmetrically provided on one side of the circular saw blade base, and two second S-shaped turbulence grooves are symmetrically provided on the other side. A plurality of arc-shaped through holes are spaced apart in the first S-shaped turbulence groove, and a plurality of arc-shaped through holes are spaced apart in the second S-shaped turbulence groove. An arc-shaped inner wall in the first S-shaped turbulence groove is inclined to drive the air in its cavity to flow outward. An arc-shaped inner wall in the second S-shaped turbulence groove is inclined to drive the air in its cavity to flow outward.

[0008] By adopting the above technical solution, since one arc-shaped inner wall of the first S-shaped turbulence groove is inclined and its inner cavity has several arc-shaped through holes, the rotating first S-shaped turbulence groove drives the air inside its cavity outward, thereby driving the air flowing over the side of the circular saw blade base to flow in different directions. The arc-shaped through holes continuously replenish the inner cavity of the first S-shaped turbulence groove. Similarly, since one arc-shaped inner wall of the second S-shaped turbulence groove is inclined and its inner cavity has several arc-shaped through holes, the rotating second S-shaped turbulence groove drives the air inside its cavity outward, thereby driving the air flowing over the side of the circular saw blade base to flow in different directions. The arc-shaped through holes continuously replenish the inner cavity of the second S-shaped turbulence groove.

[0009] In a preferred embodiment, the present invention can be further configured such that: the depths of the two first S-shaped turbulence grooves are not equal, the depths of the two second S-shaped turbulence grooves are not equal, and the sum of the two first S-shaped turbulence grooves is equal to the sum of the two second S-shaped turbulence grooves.

[0010] By adopting the above technical solution, since the depths of the two first S-shaped eddy grooves are not equal, and the depths of the two second S-shaped eddy grooves are not equal, the first S-shaped eddy grooves and the second S-shaped eddy grooves drive the air to flow in multiple different directions, thereby reducing the generation of periodic eddies.

[0011] In a preferred embodiment, the present invention can be further configured such that the two first S-shaped turbulence channels and the two second S-shaped turbulence channels are arranged in a circular array in the circumferential direction.

[0012] By adopting the above technical solution, the first S-shaped turbulence groove and the second S-shaped turbulence groove are evenly distributed along the circumference of the circular saw blade base, which can make the air resistance encountered by the circular saw blade base more uniform when rotating, thereby improving its rotational stability.

[0013] In a preferred embodiment, the present invention can be further configured such that the depths of the two first S-shaped bleed grooves and the two second S-shaped bleed grooves do not exceed half the thickness of the circular saw blade substrate.

[0014] By adopting the above technical solution, the impact on the structural strength of the circular saw blade substrate is reduced while setting the first S-shaped turbulence groove and the second S-shaped turbulence groove.

[0015] In a preferred embodiment, the present invention can be further configured such that: a scraping groove 1 is provided between the second welding boss and the first welding boss on one side, and a scraping groove 2 is provided between the second welding boss and the first welding boss on the other side, wherein the depth of the scraping groove 2 is greater than the depth of the scraping groove 1.

[0016] By adopting the above technical solution and by setting up the scraper groove 2, a large amount of waste material in the cutting groove can be scraped out at once, so that the heat in the cutting groove can be dissipated quickly.

[0017] In summary, this utility model has at least one of the following beneficial technical effects: The first, second, third, and fourth S-shaped corrugated grooves interact to drive air to flow in different directions, preventing the formation of periodic vortices behind the saw teeth and separation from vortices of specific frequencies. This reduces the probability of the air aligning with the natural frequency of the saw blade body and related components, effectively avoiding resonance and reducing cutting noise. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a structural schematic diagram of a preferred embodiment of a noise-reducing saw blade according to the present invention.

[0019] Figure 2 yes Figure 1 A schematic diagram of the structure of the first sawtooth in the middle.

[0020] Figure 3 yes Figure 1 A schematic diagram of the structure of the second sawtooth in the middle.

[0021] In the figure: 1. Circular saw blade base; 2. First welding boss; 3. Second welding boss; 4. First saw tooth; 5. Second saw tooth; 6. First S-shaped corrugated groove; 7. Second S-shaped corrugated groove; 8. Third S-shaped corrugated groove; 9. Fourth S-shaped corrugated groove; 11. First S-shaped turbulence groove; 12. Second S-shaped turbulence groove; 13. Scraper groove one; 14. Scraper groove two; 15. Arc-shaped through hole one; 16. Arc-shaped through hole two. Detailed Implementation

[0022] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0023] It should be noted that these figures are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0024] Reference Figures 1-3 The present invention discloses a noise-reducing saw blade, comprising: a circular saw blade base 1, wherein a plurality of first welding protrusions 2 are connected to the outer circular surface of the circular saw blade base 1, and a second welding protrusion 3 is provided between adjacent first welding protrusions 2, the second welding protrusion 3 being connected to the outer circular surface of the circular saw blade base 1, and first saw teeth 4 are welded on the first welding protrusions 2 respectively, and second saw teeth 5 are welded on the second welding protrusions 3 respectively.

[0025] The first sawtooth 4 has a first S-shaped corrugated groove 6 on one side and a second S-shaped corrugated groove 7 on the other side. The trough of the first S-shaped corrugated groove 6 corresponds to the peak of the second S-shaped corrugated groove 7, and the peak of the first S-shaped corrugated groove 6 corresponds to the trough of the second S-shaped corrugated groove 7.

[0026] The second sawtooth 5 has a third S-shaped corrugated groove 8 on one side and a fourth S-shaped corrugated groove 9 on the other side. The trough of the third S-shaped corrugated groove 8 corresponds to the crest of the fourth S-shaped corrugated groove 9, and the crest of the third S-shaped corrugated groove 8 corresponds to the trough of the fourth S-shaped corrugated groove 9.

[0027] The trough depth of the first S-shaped corrugated groove 6 is not equal to the trough depth of the second S-shaped corrugated groove 7, and the trough depth of the third S-shaped corrugated groove 8 is not equal to the trough depth of the fourth S-shaped corrugated groove 9.

[0028] Two first S-shaped flow channels 11 are symmetrically arranged on one side of the circular saw blade base 1, and two second S-shaped flow channels 12 are symmetrically arranged on the other side. Several arc-shaped through holes 15 are spaced apart within the first S-shaped flow channels 11, and several arc-shaped through holes 16 are spaced apart within the second S-shaped flow channels 12. One arc-shaped inner wall of the first S-shaped flow channel 11 is inclined, suitable for driving the air inside its cavity to flow outwards. Similarly, one arc-shaped inner wall of the second S-shaped flow channel 12 is inclined, also suitable for driving the air inside its cavity to flow outwards. Because one arc-shaped inner wall of the first S-shaped flow channel 11 is inclined, and its cavity has several arc-shaped through holes 15, the rotating first S-shaped flow channel 11 drives the air inside its cavity to flow outwards, thereby driving the air flowing through the side of the circular saw blade base 1 to flow in different directions. The arc-shaped through holes 15 continuously replenish the cavity of the first S-shaped flow channel 11. Because one of the arc-shaped inner walls of the second S-shaped turbulence groove 12 is inclined, and its inner cavity is provided with several arc-shaped through holes 16, the rotating second S-shaped turbulence groove 12 drives the air in its inner cavity to the outside, thereby driving the air flowing through the side of the circular saw blade base 1 to flow in different directions. The arc-shaped through holes 16 continuously replenish the inner cavity of the second S-shaped turbulence groove 12 with air.

[0029] The two first S-shaped flow channels 11 have unequal depths, and the two second S-shaped flow channels 12 have unequal depths. The sum of the two first S-shaped flow channels 11 is equal to the sum of the two second S-shaped flow channels 12. Because the two first S-shaped flow channels 11 and the two second S-shaped flow channels 12 have unequal depths, they drive air to flow in multiple different directions, reducing the generation of periodic vortices.

[0030] The two first S-shaped baffle grooves 11 and the two second S-shaped baffle grooves 12 are arranged in a circular array in the circumferential direction. Distributing the first S-shaped baffle grooves 11 and the second S-shaped baffle grooves 12 evenly in the circumferential direction on the circular saw blade base 1 can make the air resistance encountered by the circular saw blade base 1 more uniform when rotating, thereby improving its rotational stability.

[0031] The depths of the two first S-shaped baffle grooves 11 and the two second S-shaped baffle grooves 12 are all no more than half the thickness of the circular saw blade base 1. By providing the first S-shaped baffle grooves 11 and the second S-shaped baffle grooves 12, the impact on the structural strength of the circular saw blade base 1 is reduced.

[0032] A scraper groove 13 is provided between the second welding boss 3 and the first welding boss 2 on one side, and a scraper groove 24 is provided between the second welding boss 3 and the first welding boss 2 on the other side. The depth of the scraper groove 214 is greater than the depth of the scraper groove 13. By setting the scraper groove 214, a large amount of waste material in the cutting groove can be scraped out at one time, so that the heat in the cutting groove can be dissipated quickly.

[0033] The implementation principle of this embodiment is as follows: In use, the saw blade is installed on the spindle of the cutting machine. After the cutting machine starts working, it drives the circular saw blade base 1 to rotate, which in turn drives the first saw tooth 4 on the first welding boss 2 and the second saw tooth 5 on the second welding boss 3 to rotate at high speed, thereby realizing the cutting operation of the material. Since the first saw tooth 4 is provided with a first S-shaped corrugated groove 6 and a second S-shaped corrugated groove 7 on both sides, and the second saw tooth 5 is provided with a third S-shaped corrugated groove 8 and a fourth S-shaped corrugated groove 9 on both sides, these S-shaped corrugated grooves drive the flowing air in different directions, making it difficult for the air to form a periodic vortex behind the saw tooth, that is, it will not produce vortex separation of a specific frequency, thereby reducing the probability that the vortex and the natural frequency of the circular saw blade base 1 and its related components are close to or even completely consistent, effectively avoiding the occurrence of resonance effect, reducing the noise generated by the saw blade during cutting, and improving the use effect. Since the trough depths of the first S-shaped corrugated groove 6 and the second S-shaped corrugated groove 7 are not equal, and the trough depths of the third S-shaped corrugated groove 8 and the fourth S-shaped corrugated groove 9 are also not equal, this design allows the four S-shaped corrugated grooves to disperse and drive the air in more directions, greatly reducing the possibility that the air vortex and the natural frequency of the circular saw blade base 1 and its associated components will approach or completely coincide, further enhancing the noise reduction and stable use effect.

[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A noise-reducing saw blade, characterized in that, include: A circular saw blade base (1) has a plurality of first welding bosses (2) connected to its outer circular surface. A second welding boss (3) is provided between adjacent first welding bosses (2). The second welding boss (3) is connected to the outer circular surface of the circular saw blade base (1). First saw teeth (4) are welded on the first welding bosses (2) respectively, and second saw teeth (5) are welded on the second welding bosses (3) respectively. The first sawtooth (4) has a first S-shaped corrugated groove (6) on one side and a second S-shaped corrugated groove (7) on the other side. The trough of the first S-shaped corrugated groove (6) corresponds to the peak of the second S-shaped corrugated groove (7), and the peak of the first S-shaped corrugated groove (6) corresponds to the trough of the second S-shaped corrugated groove (7). The second sawtooth (5) has a third S-shaped corrugated groove (8) on one side and a fourth S-shaped corrugated groove (9) on the other side. The trough of the third S-shaped corrugated groove (8) corresponds to the peak of the fourth S-shaped corrugated groove (9), and the peak of the third S-shaped corrugated groove (8) corresponds to the trough of the fourth S-shaped corrugated groove (9). The trough depth of the first S-shaped corrugated groove (6) is not equal to the trough depth of the second S-shaped corrugated groove (7), and the trough depth of the third S-shaped corrugated groove (8) is not equal to the trough depth of the fourth S-shaped corrugated groove (9).

2. The noise-reducing saw blade according to claim 1, characterized in that, The circular saw blade base (1) has two first S-shaped turbulence grooves (11) symmetrically arranged on one side and two second S-shaped turbulence grooves (12) symmetrically arranged on the other side. The first S-shaped turbulence groove (11) has several arc-shaped through holes (15) spaced apart, and the second S-shaped turbulence groove (12) has several arc-shaped through holes (16) spaced apart. One arc-shaped inner wall of the first S-shaped turbulence groove (11) is inclined to drive the air in its cavity to flow outward. The arc-shaped inner wall of the second S-shaped turbulence groove (12) is inclined to drive the air in its cavity to flow outward.

3. The noise-reducing saw blade according to claim 2, characterized in that, The two first S-shaped eddy grooves (11) have different depths, the two second S-shaped eddy grooves (12) have different depths, and the sum of the two first S-shaped eddy grooves (11) is equal to the sum of the two second S-shaped eddy grooves (12).

4. The noise-reducing saw blade according to claim 2, characterized in that, The two first S-shaped eddy grooves (11) and the two second S-shaped eddy grooves (12) are arranged in a circular array in the circumferential direction.

5. The noise-reducing saw blade according to claim 2, characterized in that, The depth of the two first S-shaped bleed grooves (11) and the two second S-shaped bleed grooves (12) does not exceed half the thickness of the circular saw blade substrate (1).

6. The noise-reducing saw blade according to claim 1, characterized in that, The second welding boss (3) is provided with a scraper groove (13) between it and the first welding boss (2) on one side, and a scraper groove (14) is provided between it and the first welding boss (2) on the other side. The depth of the scraper groove (14) is greater than the depth of the scraper groove (13).

Images